package com.xiaoke.websocket.config;

import cn.hutool.json.JSONUtil;
import com.xiaoke.websocket.holder.WebSocketSessionHolder;
import com.xiaoke.websocket.message.JsonWebSocketMessage;
import lombok.extern.slf4j.Slf4j;
import org.springframework.web.socket.TextMessage;
import org.springframework.web.socket.WebSocketSession;

import java.io.IOException;
import java.util.Collection;

/**
 * @author Hccake 2021/1/4
 * @version 1.0
 */
@Slf4j
public class WebSocketMessageSender {

    public static void broadcast(String message) {
        Collection<WebSocketSession> sessions = WebSocketSessionHolder.getSessions();
        for (WebSocketSession session : sessions) {
            send(session, message);
        }
    }

    public static boolean send(Object sessionKey, String message) {
        WebSocketSession session = WebSocketSessionHolder.getSession(sessionKey);
        if (session == null) {
            log.info("[send] 当前 sessionKey：{} 对应 session 不在本服务中", sessionKey);
            return false;
        } else {
            return send(session, message);
        }
    }

    public static void send(WebSocketSession session, JsonWebSocketMessage message) {
        send(session, JSONUtil.toJsonStr(message));
    }

    public static boolean send(WebSocketSession session, String message) {
        if (session == null) {
            log.error("[send] session 为 null");
            return false;
        }
        if (!session.isOpen()) {
            log.error("[send] session 已经关闭");
            return false;
        }
        try {
            session.sendMessage(new TextMessage(message));
        } catch (IOException e) {
            log.error("[send] session({}) 发送消息({}) 异常", session, message, e);
            return false;
        }
        return true;
    }

}
